Error Logger Event Handlers

Formats and writes supervisor reports, crash report and progress report to a single file.

error_logger_mf_h

This error logger writes all events sent to
the error logger to disk. It installs the log_mf_h
event handler in the error_logger process.

Configuration

The following configuration parameters are defined for the SASL
application. See app(4) for more information about
configuration parameters:

sasl_error_logger = Value <optional>

Value is one of:

tty

Installs sasl_report_tty_h in the error logger.
This is the default option.

{file,FileName}

Installs sasl_report_file_h in the error logger.
This makes all reports go to the file FileName.
FileName is a string.

false

No SASL error logger handler is installed.

errlog_type = error | progress | all <optional>

Restricts the error logging performed by the specified
sasl_error_logger to error reports, progress reports,
or both. Default is all.

error_logger_mf_dir = string() | false<optional>

Specifies in which directory the files are stored. If this
parameter is undefined or false,
the error_logger_mf_h is not installed.

error_logger_mf_maxbytes = integer() <optional>

Specifies how large each individual file can be. If this
parameter is undefined, the error_logger_mf_h is not
installed.

error_logger_mf_maxfiles = 0<integer()<256 <optional>

Specifies how many files are used. If this parameter is
undefined, the error_logger_mf_h is not installed.

overload_max_intensity = float() > 0 <optional>

Specifies the maximum intensity for overload. Default
is 0.8.

overload_weight = float() > 0 <optional>

Specifies the overload weight. Default is 0.1.

start_prg = string() <optional>

Specifies which program should be used when restarting
the system. Default is $OTP_ROOT/bin/start.

masters = [atom()] <optional>

Specifies which nodes this node uses to read/write release
information. This parameter is ignored if
the client_directory parameter is not set.

client_directory = string() <optional>

This parameter specifies the client directory at the master
nodes. Refer to Release Handling in OTP Design Principles for more information. This parameter is
ignored if the masters parameter is not set.

static_emulator = true | false <optional>

Indicates if the Erlang emulator is statically installed. A
node with a static emulator cannot switch dynamically to a
new emulator as the executable files are written into memory
statically. This parameter is ignored if the masters
and client_directory parameters are not set.

releases_dir = string() <optional>

Indicates where the releases directory is located.
The release handler writes all its files to this directory.
If this parameter is not set, the OS environment parameter
RELDIR is used. By default, this is
$OTP_ROOT/releases.

utc_log = true | false <optional>

If set to true, all dates in textual log outputs are
displayed in Universal Coordinated Time with the string
UTC appended.